After graduating with a Bachelor Of Arts (BA) in Health, Exercise And Sport Sciences in 2014, she moved to Hawaii where she was introduced to Brazilian jiu-jitsu through her uncle Jay Thompson an MMA promoter.[4] She joined K team Martial Arts Academy (aRelson Gracie Academy affiliate) and started competing, training under Robert Drysdale and Egan Inoue. After less than a year of training, she was promoted to blue belt.[2]
In 2016 she met Robert “Cyborg” Abreu during a training camp, she then joined his academy Fight SportsinMiami Florida. She became World champion three years in a row winning a World title at every belt level in both Gi and No-Gi.[5] In February 2019, Grindatti came second at the ADCC North American Trials in the +60 kg (132.3 lb) division after defeating Monique Ricardo in quarter-finals, N. Evangelista in the semi-finals but losing to Amanda Leve in the final.[2] In November 2019, Abeu proposed to Grindatti,[6]
In December 2019, Grindatti was promoted to black belt by Abreu.[7] In 2020 she won silver at the European Open Championship, the following year she won silver at the Pan No-Gi Championship the bronze at the IBJJF World Championship. In February 2022 she won her first major IBJJF title becoming European Champion after defeating Magdalena Loska and winning gold at the 2022 IBJJF European Open.[8]
In April 2022 she participated to the ADCC West Coast Trials, she was defeated in the quarter-finals by Amy Campo.[9] In 2023 she won gold in Absolute at the IBJJF Austin Winter International.[10] After the tournament, Grindatti announced that she would be leaving Fight Sports and no longer represent the team.[11] Grindatti competed under Vagner Rocha Martial Arts (VRMA) at Midwest Finishers 12 on 11 February 2023 in a 3 v 3 women's team tournament. They lost in the second round, with Grindatti drawing her only match.[12]
Grindatti was then invited to compete in the women's under 66kg grand prix at Polaris 23 on March 11, 2023.[13] She lost in the opening round to Brianna Ste-Marie.[14] Shortly after the tournament, Grindatti announced that she had moved to ATOS and would be representing them in competition moving forward.[15]
Grindatti competed in the under 70kg grand prix at Enyo Grappling 4 on September 21, 2023.[16] She beat three opponents and won the tournament.[17] Grindatti then entered the medium-heavyweight division of the IBJJF No Gi Pan Championship 2023 on October 1, 2023 and won a bronze medal.[18]
Grindatti lost in the opening round of the IBJJF No-Gi World Championship 2023 and left her rashguard on the mat to signal her retirement from the sport.[19]
